Describe on Connective Tissue
Connective tissues are most abundant and widely distributed in the body of complex animals. They are named connective tissues because of their special function of…
Biology
Explain on Compound Epithelium Tissue
The compound epithelium is made of more than one layer (multi-layered) of cells and thus has a limited role in secretion and absorption (Figure). Their…
Explain on Animal Epithelial Tissue
Epithelial Tissue commonly refers to an epithelium (pl.: epithelia). This tissue has a free surface, which faces either a body fluid or the outside environment…
Describe the Structure of Chloroplast
Position: The chloroplast is present in the green pans of the plant, especially in leaves. It is an organelle unique to plant cells that contains chlorophyll…
What is Protoplasm?
Protoplasm: The jelly-like half liquid, transparent, viscus, and living substance present within the cell wall is known as protoplasm. It is a jelly-like substance known…
Secondary Growth in Roots
Secondary Growth in the dicot root, the vascular cambium is completely secondary in origin. It originates from the tissue located just below the phloem bundles,…
Define and Describe on Cork Cambium
As the stem continues to increase in girth due to the activity of vascular cambium, the outer cortical and epidermis layers get broken and need…
Define Heartwood and Sapwood
In old trees, the greater part of secondary xylem is dark brown due to deposition of organic compounds like tannins, resins, oils, gums, aromatic substances…
Define Spring Wood and Autumn Wood
The activity of cambium is under the control of many physiological and environmental factors. In temperate regions, the climatic conditions are not uniform throughout the…
Types of plastid
The living organelle, distributed in the cytoplasm, may be pigmented or non-pigmented, which can only be found in the plant cell is called plastid. Types…
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